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Slow Time Test in IDL 5.4


Before JD goes crazy trying to analyze slow Time_Test2
values for IDL 5.4, let me alert you that a change to
the IDL library routine FACTORIAL has made that routine
*significantly* slower. So much so, that Time_Test2 runs
about 10 times slower on PCs running IDL 5.4 than it does
running earlier versions. :-(

RSI is working on the problem, but for the time being
you may want to copy the IDL 5.3.1 factorial.pro over
into your IDL 5.4 lib subdirectory. Having done this,
we find the Time_Test2 to be noticeably faster in IDL 5.4
than in IDL 5.3.1.

Best Regards,


David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155